Air inlet structure, automobile and air inlet control method

A technology of air intake structure and control method, which is applied in the direction of engine control, fuel air intake, combustion air/combustion-air treatment, etc., and can solve the problem of insufficient flexibility of air gas filling

Active Publication Date: 2022-08-05
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a kind of air intake structure, automobile and air intake control ...

Method used

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  • Air inlet structure, automobile and air inlet control method
  • Air inlet structure, automobile and air inlet control method
  • Air inlet structure, automobile and air inlet control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] like image 3 As shown, only the baffle 30 of the leftmost communication port 21 is moved, the leftmost communication ports 21 are all opened, and the remaining communication ports 21 are kept closed. The exchange of intake air inside the two volume chambers 212 has a low impact on the charging efficiency. This control strategy is used for the engine to have low requirements for charging efficiency. The first volume chamber 211 and the second volume chamber 212 are required to take in air respectively, and the communication port 21 is opened. It can be ensured that the recycled exhaust gas can be mixed with the intake air to a certain extent.

Embodiment 2

[0055] like Figure 4 As shown, when only the baffle 30 of the rightmost communication port 21 is moved, the rest of the communication ports remain closed. Compared with only moving the baffle 30 of the leftmost communication port 21, this control strategy can effectively improve the inflation efficiency At the same time, the requirements for the utilization rate of exhaust gas recirculation are not high.

Embodiment 3

[0057] like Figure 5 As shown, only the baffle 30 of the communication port 21 in the middle position is moved. The charging efficiency and EGR rate of this control strategy are between the first and second embodiments, which improves the flexibility of the engine charging efficiency and the EGR rate. Ensure that the engine can select the most suitable control strategy at a specific speed to ensure the best engine performance output.

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Abstract

The invention provides an air inlet structure, an automobile and an air inlet control method. The air inlet structure comprises an air inlet header pipe, and a volume cavity is formed in the air inlet header pipe; one end of the intake manifold is connected with the intake manifold, and the other end of the intake manifold is used for being connected with an engine; the partition plate is arranged in the volume cavity so as to divide the volume cavity into a first volume cavity and a second volume cavity; a communicating port is formed in the partition plate, and the first volume cavity and the second volume cavity are communicated with each other through the communicating port; the baffle is movably arranged to open or close the communication opening; the first air inlet pipeline is provided with a first air inlet channel communicated with the first volume cavity; and the second air inlet pipeline is provided with a second air inlet channel communicating with the second volume cavity, and the air inlet structure solves the problem that in the prior art, air inflation of an air inlet structure of an engine is not flexible enough.

Description

technical field [0001] The present invention relates to the technical field of engines, in particular, to an air intake structure, an automobile and an air intake control method. Background technique [0002] During the driving process of the car, the engine performance output is insufficient and the efficiency is not high due to the instability of the intake air volume and the charging efficiency within the speed range of the entire working condition. At the same time, the exhaust gas recirculation system cannot fully mix with the intake air in the intake line, which will affect the combustion performance of the engine. [0003] Existing engines have many ways to increase charging efficiency. For example, an intake manifold with a resonant cavity is set in the engine to provide the engine with a high instantaneous intake pressure and charge coefficient, to ensure the stability of the engine's charging efficiency at each speed and the engine's stable performance within each...

Claims

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Application Information

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IPC IPC(8): F02M35/10F02M35/104F02D9/02
CPCF02M35/10F02M35/10157F02M35/10255F02M35/104F02D9/02Y02T10/12
Inventor 王占峰肖宏宇韩令海李金成宫艳峰
Owner CHINA FIRST AUTOMOBILE
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